Author: David Schneider <david.schnei...@picle.org>
Branch: arm-backed-float
Changeset: r44647:93e1b8303ca3
Date: 2011-06-02 11:58 +0200
http://bitbucket.org/pypy/pypy/changeset/93e1b8303ca3/
Log: make sure to use imm values for offset calculations when possible
diff --git a/pypy/jit/backend/arm/assembler.py
b/pypy/jit/backend/arm/assembler.py
--- a/pypy/jit/backend/arm/assembler.py
+++ b/pypy/jit/backend/arm/assembler.py
@@ -817,21 +817,21 @@
self.mc.LDR_ri(loc.value, r.fp.value, imm=-offset.value,
cond=cond)
elif loc.is_stack() and prev_loc.is_vfp_reg():
# spill vfp register
- offset = ConstInt(loc.position*-WORD)
+ offset = ConstInt(loc.position*WORD)
if not _check_imm_arg(offset):
self.mc.gen_load_int(temp.value, offset.value)
- self.mc.ADD_rr(temp.value, r.fp.value, temp.value)
+ self.mc.SUB_rr(temp.value, r.fp.value, temp.value)
else:
- self.mc.ADD_rr(temp.value, r.fp.value, offset.value)
+ self.mc.SUB_ri(temp.value, r.fp.value, offset.value)
self.mc.VSTR(prev_loc.value, temp.value, cond=cond)
elif loc.is_vfp_reg() and prev_loc.is_stack():
# load spilled value into vfp reg
- offset = ConstInt(prev_loc.position*-WORD)
+ offset = ConstInt(prev_loc.position*WORD)
if not _check_imm_arg(offset):
self.mc.gen_load_int(temp.value, offset.value)
- self.mc.ADD_rr(temp.value, r.fp.value, temp.value)
+ self.mc.SUB_rr(temp.value, r.fp.value, temp.value)
else:
- self.mc.ADD_rr(temp.value, r.fp.value, offset.value)
+ self.mc.SUB_ri(temp.value, r.fp.value, offset.value)
self.mc.VLDR(loc.value, temp.value, cond=cond)
else:
assert 0, 'unsupported case'
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